PDF malware analysis — malicious · d27a2cd7962c3a89

MALICIOUS

PDF

14.6 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: f28187794327cf09fcd318a572fd86b6 SHA-1: dd5b60532c30c46789f8d11dd38e51da3be99992 SHA-256: d27a2cd7962c3a89f8b14109f0e5dc5e5e3d66ce68e20d49637f1aff0713f1e9

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript stream, named 'javascript_obj0013_000.js', likely contains obfuscated code that uses eval() to execute further commands, a common technique for downloading and executing second-stage malware. The specific ClamAV detection 'Pdf.Exploit.Agent-36118' further supports this assessment.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_000.js` `bbde29ab38c4bf5a67c7f4fad4c468e6a5f74cbdd4ba0bac9b9fa9e9f9035af3`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13352 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 3 long base64-like blob(s).

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